US6581783B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fine solids separator
Assignee: Contech Engineered Solutions LLC
•
Filing: 2001-05-17
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Granted: 2003-06-24
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Expires: 2021-05-17
Abstract
Abstract A fine solids separator 10 including a hollow housing 12 having a generally cylindrical wall 11. Located within the housing 12 is a cylindrical screen member 15 that is preferably formed of expanded metal mesh. The screen member 15 encloses a chamber 22 to which a flocculated sewage is delivered by means of an inlet duct 23. Located within the chamber 22 is an impeller 26 which at least aids circulation of liquid within the chamber 22 about the longitudinal axis of the chamber 22. Liquid leaves the chamber 22 via the screen member 15 and an outlet 25 extending from an outlet chamber 24 located between the member 15 and housing 12.
Inventors
- 👤 Paul George Blanche
- 👤 Brian Philip Formby
- 👤 Hongshun Li
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:02
CPC Classifications
B; B07; B07B; B07B1/00; B07B1/18; B07B1/20; B01; B01D; B01D29/00; B01D29/11; B01D29/117; B01D29/62; B01D29/66; B01D29/68; B01D29/682; B01D29/76; B01D29/86; B01D2201/00; B01D2201/28; B01D2201/287; B07B2230/00; B07B2230/01
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
178 words
An apparatus to remove solid material from a body of liquid, said apparatus including: a generally cylindrical wall providing a chamber to receive the liquid, said cylindrical wall having a generally vertical longitudinal axis and including an apertured portion through which the liquid leaves the chamber, the apertured portion being adapted to remove solid material greater than a predetermined size from liquid passing through the apertured portion, and wherein said wall is mounted for rotation about said axis; a housing generally surrounding said wall and co-operating therewith to provide a space into which the liquid flows from said apertured portion; liquid drive means to at least partly cause movement of the liquid in the chamber about said axis so that liquid passes the apertured portion to aid in removing solid material therefrom; a motor to cause said rotation; means to remove the solid material from within the chamber; an inlet via which liquid is delivered to said chamber; and an outlet extending from said space so as to maintain a level of liquid in said space and chamber.
Claim 2
Independent Claim
178 words
An apparatus to remove solid material from a body of liquid, said apparatus including: a generally cylindrical wall providing a chamber to receive the liquid, said cylindrical wall having a generally vertical longitudinal axis and including an apertured portion through which the liquid leaves the chamber, the apertured portion being adapted to remove solid material greater than a predetermined size from liquid passing through the apertured portion, and wherein said wall is mounted for rotation about said axis; a housing generally surrounding said wall and co-operating therewith to provide a space into which the liquid flows from said apertured portion; liquid drive means to at least partly cause movement of the liquid in the chamber about said axis so that liquid passes the apertured portion to aid in removing solid material therefrom; a motor to cause said rotation; means to remove the solid material from within the chamber; an inlet via which liquid is delivered to said chamber; and an outlet extending from said space so as to maintain a level of liquid in said space and chamber.
Claim 3
Dependent Claim
14 words
The apparatus of claim 1 wherein substantially the entire wall provides said apertured portion.
Claim 4
Dependent Claim
15 words
The apparatus of claim 2 wherein the cylindrical wall is made of expanded metal mesh.
Claim 5
Dependent Claim
28 words
The apparatus of claim 2 wherein the means to cause movement of liquid in the chamber moves the liquid angularly about the longitudinal axis of the cylindrical wall.
Claim 6
Dependent Claim
32 words
The apparatus of claim 2 wherein the apparatus includes a spray assembly to direct a stream of fluid toward said cylindrical wall from said space to aid in removing collected solid material.
Claim 7
Dependent Claim
45 words
The apparatus of claim 2 wherein said inlet is spaced from said axis so as to direct the liquid to move angularly about said axis and the liquid drive means augments movement of the said incoming liquid and is an impeller rotated about said axis.
Claim 8
Dependent Claim
39 words
The apparatus of claim 1 when adapted to receive flocculated sewage, with the apparatus including a threshold member above which floc material passes to be removed from the chamber and therefore provide the means to remove the solid material.
Claim 9
Dependent Claim
24 words
The apparatus of claim 7 further including a scraper member is operatively associated with the threshold member to aid in removing the floc material.
Claim 10
Dependent Claim
24 words
The apparatus of claim 1 , adapted as a solids separator to remove solids down to and even less than 1 micrometer in size.
Claim 11
Dependent Claim
34 words
The apparatus of claim 1 , adapted to receive flocculated sewage, with said apparatus including a conveyor to engage the floc sewage to deliver it to a position wherefrom it exits from said apparatus.
Claim 12
Dependent Claim
23 words
The apparatus of claim 10 further including a floc sewage receiving space above said chamber, and wherein said conveyor extends from said space.
Claim 13
Dependent Claim
44 words
The apparatus of claim 11 wherein said wall is a lower wall, and said apparatus includes an upper wall extending upwardly from said lower wall, with said upper wall encompassing a space that receives the floc sewage, with said conveyor extending from said space.
Claim 14
Dependent Claim
30 words
The apparatus of claim 11 wherein said conveyor extends upwardly from said space and said apparatus includes an outlet trough to which the floc sewage is delivered by said conveyor.
Claim 15
Dependent Claim
31 words
The apparatus of claim 12 wherein said conveyor includes a trough, and a belt having flanges that pass along said trough to move the floc from said space to said trough.
Claim 16
Dependent Claim
18 words
The apparatus of claim 1 wherein said inlet delivers the liquid to an upper portion of said chamber.
Claim 17
Independent Claim
190 words
An apparatus to remove solid material from a body of liquid, said apparatus including: a generally cylindrical wall providing a chamber to receive the liquid, said cylindrical wall having a generally vertical longitudinal axis and including an apertured portion through which the liquid leaves the chamber, the apertured portion being adapted to remove solid material greater than a predetermined size from liquid passing through the apertured portion; a housing generally surrounding said wall and co-operating therewith to provide a space into which the liquid flows from said apertured portion; liquid drive means to at least partly cause movement of the liquid in the chamber angularly about said axis so that liquid passes the apertured portion to aid in removing solid material therefrom; means to remove the solid material from within the chamber; an inlet via which liquid is delivered to said chamber, said inlet being spaced from said axis so as to direct the liquid to move angularly about said axis, with the liquid drive means augmenting said angular movement; and an outlet extending from said space so as to maintain a level of liquid in said space and chamber.
Claim 18
Independent Claim
190 words
An apparatus to remove solid material from a body of liquid, said apparatus including: a generally cylindrical wall providing a chamber to receive the liquid, said cylindrical wall having a generally vertical longitudinal axis and including an apertured portion through which the liquid leaves the chamber, the apertured portion being adapted to remove solid material greater than a predetermined size from liquid passing through the apertured portion; a housing generally surrounding said wall and co-operating therewith to provide a space into which the liquid flows from said apertured portion; liquid drive means to at least partly cause movement of the liquid in the chamber angularly about said axis so that liquid passes the apertured portion to aid in removing solid material therefrom; means to remove the solid material from within the chamber; an inlet via which liquid is delivered to said chamber, said inlet being spaced from said axis so as to direct the liquid to move angularly about said axis, with the liquid drive means augmenting said angular movement; and an outlet extending from said space so as to maintain a level of liquid in said space and chamber.
Claim 19
Dependent Claim
28 words
The apparatus of claim 16 wherein the liquid drive means is an impeller driven to rotate about said axis and located adjacent a lower portion of said wall.
Claim 20
Dependent Claim
14 words
The apparatus of claim 17 wherein substantially the entire wall provides said apertured portion.
Claim 21
Dependent Claim
15 words
The apparatus of claim 18 wherein the cylindrical wall is made of expanded metal mesh.
Claim 22
Dependent Claim
32 words
The apparatus of claim 19 wherein the apparatus includes a spray assembly to direct a stream of fluid toward said cylindrical wall from said space to aid in removing collected solid material.
Claim 23
Dependent Claim
39 words
The apparatus of claim 16 when adapted to receive flocculated sewage, with the apparatus including a threshold member above which floc material passes to be removed from the chamber and therefore provide the means to remove the solid material.
Claim 24
Dependent Claim
24 words
The apparatus of claim 21 further including a scraper member is operatively associated with the threshold member to aid in removing the floc material.
Claim 25
Dependent Claim
24 words
The apparatus of claim 16 when adapted as a solids separator to remove solids down to and even less than 1 micrometre in size.
Claim 26
Dependent Claim
34 words
The apparatus of claim 16 when adapted to receive flocculated sewage, with said apparatus including a conveyor to engage the floc sewage to deliver it to a position wherefrom it exits from said apparatus.
Claim 27
Dependent Claim
23 words
The apparatus of claim 24 further including a floc sewage receiving space above said chamber, and wherein said conveyor extends from said space.
Claim 28
Dependent Claim
44 words
The apparatus of claim 25 wherein said wall is a lower wall, and said apparatus includes an upper wall extending upwardly from said lower wall, with said upper wall encompassing a space that receives the floc sewage, with said conveyor extending from said space.
Claim 29
Dependent Claim
29 words
The apparatus of claim 25 wherein said conveyor extends upwardly from said space and said apparatus includes an outlet to which the floc sewage is delivered by said conveyor.
Claim 30
Dependent Claim
31 words
The apparatus of claim 26 wherein said conveyor includes a trough, and a belt having flanges that pass along said trough to move the floc from said space to said trough.
Claim 31
Dependent Claim
18 words
The apparatus of claim 16 wherein said inlet delivers the liquid to an upper portion of said chamber.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-06-23 | 2006-12-23 | 2007-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-06-23 | 2010-12-23 | 2011-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-06-23 | 2014-12-23 | 2015-06-24 | $7700.00 | Window Closed / Lapsed |